I have added this question to get us started:

# [What is Port Forwarding and what is it used for?][1]

> There are a lot of questions on 'port forwarding' but there doesn't seem to be one that cleary states what it is and what it's used for. So:
>
> 1. What is Port Forwarding?
>
> 2. What is it used for, and why would I need it?

I think that we still need an overview of how to set one up as well.  (also if it hasn't been done, will a mod please make it CW)


  [1]: https://superuser.com/questions/284051/what-is-port-forwarding-and-what-is-it-used-for